#558CB4#558CB4

#558CB4 is a mid, moderate cyan. Relative luminance 0.240; OKLCH L 61.8% C 0.084 H 241.5°. Best body text is #000000 at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#558CB4
RGB	rgb(85, 140, 180)
HSL	hsl(205, 39%, 52%)
HSV	hsv(205, 53%, 71%)
CMYK	cmyk(52.8%, 22.2%, 0%, 29.4%)
CIE-LAB	lab(56.07, -6.65, -26.54)
CIE-LCH	lch(56.07, 27.37, 255.93°)
OKLab	oklab(61.83% -0.0402 -0.0741)
OKLCH	oklch(61.83% 0.084 241.5)
XYZ	xyz(21.3596, 23.9810, 46.6744)
Luminance	0.2398 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558CB4 #B47D55

analogous

#55B4AD #558CB4 #555DB4

triadic

#558CB4 #B4558C #8CB455

tetradic

#558CB4 #AD55B4 #B47D55 #5DB455

square

#558CB4 #AD55B4 #B47D55 #5DB455

split-complementary

#558CB4 #B4555D #B4AD55

monochromatic

#2C4C63 #3E6C8D #558CB4 #7FA9C7 #AAC5D9

Accessibility & contrast

On white

3.62

#558CB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.80

#558CB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558CB4

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558CB4	#FFFFFF	#000000	##000000
##558CB4	1.00	3.62	5.80	5.80
#FFFFFF	3.62	1.00	21.00	21.00
#000000	5.80	21.00	1.00	1.00
##000000	5.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8CB6

Deuteranopia (green-blind)

#6E82B3

Tritanopia (blue-blind)

#1D9699

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #558cb4;
/* rgb */ color: rgb(85, 140, 180);
/* oklch */ color: oklch(61.8% 0.084 241.5);

Tailwind

colors: {
  custom: {
    50: '#8badca',
    500: '#558cb4',
    950: '#000000',
  },
}

SCSS

$custom: #558cb4;
$custom-light: #8badca;
$custom-dark: #000000;

JSON

{
  "hex": "#558cb4",
  "rgb": {
    "r": 85,
    "g": 140,
    "b": 180
  },
  "hsl": {
    "h": 205.263,
    "s": 38.776,
    "l": 51.961
  },
  "oklch": {
    "l": 0.61827,
    "c": 0.08429,
    "h": 241.5
  },
  "luminance": 0.23983
}

Semantic roles & 50–950 ramp

primary

#558CB4

secondary

#C7AF9E

accent

#8B59CF

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #558CB4

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →